Printing-machine.



PATENTED SEPT. 8, 1903.

` I. GossAN.

PRINTING MACHINE.

APPLIOATION FILED NOV. 15, 1900. Y

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N0 MODEL.

ma Nunms PEI-sns co. PnoYmnHo.. WASHINGTON, u. I.

PATNNTBD sE'PT. 8

I. GossAR. PRINTING MACHINE.

APPLIUATION FILED NOV. l5, 1900.

4 SHEETS-SHEET 2.

.NO MODEL.

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No. 738,527. PATENTED SEPT. 8, 1903. T. GOSSAR.

PRINTING MACHINE.

Y APPLICATION FILED NOY.15. 1900.

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PATENTED SEPT. 8', 1903. T. GOSSAR.

PRINTING MACHINE.

APPLmATIox FILED 1rov.15. 1900.

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1H: Now'ms mms ce. fora-urne.. wAsmNcYo UNITED STATES Patented september8,1903.'

` PATENT OFFICE.

TOMAS COSSAR, OF GOVAN, SCOTLAND.

PRINTING-MACHINE.

SPECIFICATION formingpart of Letters Patent No. 738,527, dated September8, 1903.

Application filed November 15, 1900. Serial No. 36.552. (No model.)

To all whom, t may concern:

Beit known that I, THOMAS CossAR, a citizen of the United Kingdom ofGreat Britain and Ireland, residing at 6 Osborne Place, Govan,Lanarkshire, Scotland, have invented certain new and useful Improvementsin Printing-Machines, of which the following is a specification.

The invention relates to oscillating-cylinder printingmachines-t'. e.,machines in which the cylinder prints on the backward and forwardmovement of the type-bedand the invention has for its object to providemeans for automatically and intermittently feeding the paper to beprinted froin a roll or web.

The accompanying drawings illustrate the invention, Figure 1. being aside elevation, and Fig. 2 a plan, of an oscillating-cylinderprinting-machine having my improvements applied thereto. Fig. 3 is aside View in elevation, and Fig. 4 a plan View looking from the top, ofan arrangement of Vguides and rollers employed in conjunction with theimprovements under special circumstances hereinafter referred to, andFig. 5 a plan of a modification thereof.

Referring to the drawings, Z represents the side frames of the machine,and A is the impression-cylinder, journaled in said frames. Theimpression-cylinder has gear-wheels on each end meshing with racks fixedon each side of the type-bed B in the usual way, and the type-bed orform-table is reciprocated backward and forward by the crank-disk I,acting through the connecting-rod 6, toothed wheels T, and racks S andU, or any other known method of reciprocating the bed may be employed.The bed is supported on rails (not shown in the drawings) in the usualmanner and provided with inking-rollers ct ct' a2 a3, which receive inkfrom a fountain at each end of the machine through the intervention ofthe ink-tables t' t.

D D are rollers, termed the feeding-in rollers, journaled in the sideframes Z Z, which rollers pull the web C from the reel at the properspeed, D' being pressed against D by a spring b, acting through a bush cat each end of the roller D'.

J J are rollers, termed the feedingout rollers, journaled in the sideframes Z Z and geared through toothed gearing (not shown in thedrawings) with the rollers D D', so that the surface speed of both pairsof rollers will be the same. The roller J is driven by belt or toothedgearing from any continuously-rotating shaft of the machine, preferablythe main driving-shaft s; but whatever method of driving is employedchange-wheels may be interposed, so that the speed of rollers J, J', D,and D can be altered to suit different sizes of work being printed, thechangewheels being interposed either between the main shaft and a pulleydriven therefrom or between the driving-pulley when the latter is on themain shaft and the pulley or gearing on the spindle of the roller J.When the roller J is driven by a belt, the driving-pulleys are slightlyconed, the belt being held within forks, which can be moved along thecone-pulleys to vary the speed, so that when printing the second side ofthe web the second printing may be kept in register or back to back withthe irst printing, as 'the paper may have shrunk or lengthened since therst printing, or if the paper is out of register through any othercause.

F represents the sides of the movable frame projections H', one end ofwhich slides in slots l1 l1, formed in the side frames Z and Z, thesides F being fastened together by the rods F2 to form the movableframe. The movable frame F has toothed racks F3 F3, formed on the loweredges of its sides, which gear with spur-wheels G and G, and E F. are

rollers journaled in said frame F, which have` pulleys E2 E3, tted atone of their ends, around which `a belt 2 passes.

The belt 2 is endless and passes around the feeding-in roller D', aroundthe movable roller E, around the guide-roller X, around the guide-rollerY, around the movable roller E', around the feeding-outroller J', over atension-wheel 3, carried on an arm 4. and arranged so that it may beraised or lowered to get the proper tension on the belt, the belt 2thence passing to the feeding-in roller D again. This belt 2 passingaround rollers D' and J' is driven by them and passing around rollers E,X, Y, and E' positively turns these at the same speed as the paper andso takes the strain off the same and lessens the probability of itsbeing torn or burst.

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The spur-Wheels G G gear with the racks F3 on the movable frame F, andthese wheels G G are keyedon a shaft 5, j'ournaled in the side frames ZZ.

L is a spur-wheel, also fixed on the shaft 5 and gearing with a rack Mon a rod O. The rod O also carries a roller P on its other end, whichroller is engaged by a cam H. The roller end of the rod O is alsoattached to a lever or radius arm Q, which is pivoted at Q" to the frameof the machine and which keeps the rod O in position.

The cam iiXed on the shaft s and engaging the roller P, carried by therod O, is so constructed that in conjunction with the roller P, rod O,rack M, spur-Wheel L, spur-wheels G, and racks F3 it moves the rollers EE, carried by frame F, to cause the requisite feeding of the paper orweb. The cam H may be removed and one of a dierent size substituted whenwork of a different size is being done.

The web O is drawn from a roll or web of paper, which may be hung inbearings or brackets fixed to the machine in the usual way. The web Cafter leaving the rolls is first led between the feeding-in rollers Dand D, which grip the paper and act to pull it from the roll at thespeed required-vl. e., in a complete revolution of the driving-shaft therolls D D pull off enough paper from the roll or web for two printings.The web C is then led or looped around the roller E in the movable frameF, thence around the guideroller X, under the impression-cylinder A,around the guide-roller Y, around the roller E', and finally between thefeeding-out 'rollers J J'. At this point the web may be directed to arereeling device, at which it would be rewound in order that it may besent through the machine again to be perfected--A 1'.. e., printed onthe second side or again on the first side, if it is required, in orderto print in another color or for any other reason, or it may be directedto a cutting device which cuts it into sheets.

When dealing with a web of half or less than half the breadth of thetype-bed, as shown at Figs. 3, 4, and 5, in order to be able at the sametime to perfect the webz'. e. to print it on the second side-the formsfor the first side are arranged on the type-bed on one side vof thelongitudinal center line of the printing-machine and the forms for thesecond side are fixed on the type-bed on the other side of thelongitudinalcenterlineofthesame. The web (being half or less than halfthe breadth of the type-bed) is first led through, between, over, andunder the rollers and cylinder, as before mentioned, being kept to thesame side of the longitudinal center line of machine as the forms forprinting the first side, so that it will be presented to and printed bythem. After leaving the feeding-out rollers J J the web is turned vbackagain toward the vertical center of the impression-cylinder A aroundV around-edged bar 8, set at an Aangle of fortyand parallelv to the firstbar.

five degrees to the path of the web, which directs it along a path atright angles to its previous path and transversely of the machine, theweb being then led over a roller V, journaled in bearings attached tocarrying-bars 12 and 13, this roller being movable, so that it may beused to bring the lpaper into register; The paper is thereafter led backagain still transversely of the machine, but in a direction opposite tothat immediately previous, and then around a second round-edged bar l0,xed at an angle of forty-five degrees to the then path of the web and atan angle of ninety degrees to the first fixed bar 8, which directs theweb along a path parallel to its original direction. The web is thusturned in order to present the second side to the form and is deflectedto the opposite side of the longitudinal'center line of the machine. Theweb is then led parallel to the first portion of itself, thence aroundthe upper of the feeding-.in rollers D D', through between these andaround the roller E, guide-roller X, impression-cylinder A, guide-rollerY, roller E', and finally between the feeding-out rollers J J', when itmay be reeled or cut and folded in the usual way. The web when passingbelow the cylinder the second time is presented to and printed by thesecond set of forms, thus perfecting the web.

When dealing with a web of half or less than half the breadth ofthetype-bed, in order to be able to print the web again on the first side,if it is required to print in another color or for any other reason, theforms for the first printing are fixed on the type-bed as alreadymentioned for dealing with half-breadth rolls. The web is led through,between, over, and under the rollers and cylinder, as before stated, onthe same side of the longitudinalcenter line of the machine as are theforms for the first printing, and when leaving the feeding-out rollers JJ the web is led over the roller J and back and around the round-edgedbar 8, placed at forty-five degrees to the path of the web, which bardirects the web at right angles to its original path andtransversely ofthe machine,and then around the round-edged bar 9, (shown at Fig. 5,)placed at an angle of forty-five degrees to the path of the web The webis thus directed along a path parallel to its original path and around aregistering device, also einployed when printing on the reverse side ofthe web, consisting of an adjustable roller D2, located inside of andslightly above the feeding-in roller D', and again through between .therollers'D D', over and under the other rollers and cylinder, as beforestated, and on leaving the feeding-out rollers J J may be rereeled orcut and folded, such roller D2 contacting with a like roller located oneither side thereof immediately below the same, as shown in Fig. 3.Through the action ofthe Vround-edged bars 8 and 9 the web is defiectedfrom one side of the longitudinal center line of the machine to theother side of the same,

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but is not turned, and on passing through the' machine for the secondtime the side already printed is presented to and printed by the secondset of forms.

The action of the apparatus is as follows: Assuming the type-bed to bein the position shown by the drawingsi. c., about the middle of itsprinting motion in the direction of the arrow-the traveling frame F,with the rollers E E', is at that part of its stroke shown by thedrawings and moving in the direction toward the feeding-in end, beingmoved by the cam I-I in conjunction with the roller P, rod O, rack M onrod meshing with the spurwheel L on the shaft 5, the spur-wheels G G onthe shaft 5 meshing with the racks F3 on the frame F, which carries therollers E E, the rollerE shortening the loop on the feeding-in sideenough to supply the web to the cylinder at the proper speed, Whiletaking up the web being fed in by the feeding-in rollers D D', and theroller E acting to take up the slack which would otherwise be formed onthe delivery side of the cylinder, While allowing the feeding-outrollers .I J to roll out the Web at a constant speed. When the form-bedhas traveled so far on its forward stroke that the form has cleared theimpression-cylinder A, the cam H acts to move the frame F, carrying therollers E E, farther to the right, which action, combined with theaction of the feedingin rollers D D and the feeding-out rollers J J',causes the Web to be shifted through below the cylinder toward the lefta sufficient distance to provide enough web for the printing on thereturn stroke of bed. This shifting action takes place while the form isclear of the impression-cylinder and is reversing its direction oftravel and before it again comes into printing contact withtheimpression-cylinder. On the backward stroke of the type-bed the paperdrawn through receives its impression, the traveling frame being causedto return toward the left by the action of the cam H, Vand the roller Eshortens the loop on the delivery side of the impression-cylinder tosupply the web to the cylinder at the proper speed, while allowing thefeeding-out rollers J J' to roll out the web at a constant speed, andtheroller E at the same time lengthening the loop on the feeding-in sidein order to take up the web supplied by the constant feed of the feed-1rolls D D and the motion of the form-bed to the right. As the formclears the impressioncylinder A in the stroke of the bed in this di`rection, the. cam H acts to cause the frame F and rollers FX E to moveto the right, and this movement, combined with the action of thefeeding-out rollers J J and the feeding-in rollers D D', effects theshifting through below the impression-cylinder A of the length justprinted and brings a fresh portion into position to be printed on theforward motion of the type-bed B, this shifting action taking place whenthe form is clear of the impressioncylinder and reversing its directionof motion and before the form again comes into printing contact with'the impressioncylinder. This completes the cycle of operations, whichcontinue until the desired number of impressions have been taken.

Having now described the invention, what I claim, and desire to secureby Letters Patent, isj Y l. In an oscillating-cylinder printing-machine,means for automatically and intermittently feeding the paper to beprinted from the web, said means consisting of feeding-in andfeeding-out rollers, a horizontally-movable frame carrying rollers overwhich the paper is looped, racks on said frame, spurwheels gearing intosaid racks and keyed at each end of a transverse shaft having itsbearings in the machine-framing, a third spur-Wheel on the transverseshaft, a rack for actuating the latter spur-wheel, and a rotating camfor actuating the last-mentioned rack, substantially as described.

2.' In an oscillating-cylinder printing-machine, the combination withmeans for automatically and intermittently feeding the, paper to beprinted from the web, consisting of a horizontally-movable framecarrying rollers over which the paper is looped, of racks on said frame,spur-Wheels gearing into said racks and keyed at each end of atransverse shaft having its bearings in the machineframing, a thirdspur-Wheel on the transverse shaft, a rack for actuating` the latterspurwheel, a rotating cam for actuating the lastmentioned rack, andmeansfor directing the Web a second time to the form for additionalprinting, substantially as shown and described.

V3. In an oscillating-cylinder printing-man` chine, the means forautomatically and intermittently feeding the paper from theweb,consisting of a horizontally-movable frame carrying rollers overwhich the paper is looped, racks on said frame, spur-Wheels gearing intosaid racks and keyed at each end of a transverse shaft having itsbearings in the machine-framing, a third spur -Wheel on the transverseshaft, a rack for actuating the latter spur-Wheel and a rotating cam foractuating the last-mentioned rack, in combination with means forpresenting the reverse side of the Web to the printing-forms, said meansconsisting of a round-edged bar, a roller, 4and asecondbar acting inconjunction to direct the Web rst transverselyof thema.-

chine, then in the same directionlas, and

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4. In anoscillating-cylinder printing-may chine for automatically andintermittently feeding from the web, the combination with feeding-in andfeeding-ont rollers of ahorizontally-movable frame carrying rollers overwhich the web is looped, and a driving-belt looped over thefeeding-rollers and over the rollers on the movable frame, substantiallyas and for the purpose set forth.

5. In an oscillating-cylinder printing-machine the combination withmeans for automatically and intermittently feeding the paper to beprinted from the Welj, consisting of feeding-in and feeding-out rollers,a horizontally-movable frame carrying rollers over Which the web islooped, a driving-belt looped over the feeding-rollers and over therollers on the movable frame, racks on said frame, spur-Wheelsgearinginto said racks and keyed at each end of a transverse shafthaving its 'bearings in the machine-framing, a third spur-wheel on thetransverse shaft, a rack for actuating the latter spur-wheel, a rotatingcam for actuating the last-mentioned rack, and means for presenting thereverse side of the web to the printing-forms, con-l

